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Cash and cash equivalents and Investments and Additional information on the consolidated statements of cash flows - Most significant investing activities (Details) - ARS ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Fixed assets acquisitions include: |  |  |
CAPEX (Note 8) | $ (9,905) | $ (9,632) | $ (6,396)
Acquisition of Materials (net transfers to CAPEX, Note 8) | (1,433) | (474) | (1,062)
Subtotal | (11,338) | (10,106) | (7,458)
Plus: Payments of trade payables originated in prior years acquisitions | (3,342) | (4,832) | (1,367)
Less: Acquisition of fixed assets through incurrence of trade payables | 3,862 | 5,298 | 3,592
Assets retirement obligations | 35 | 45 | 53
Mobile handsets lent to customers at no cost | 56 | 54 | 32
Fixed assets acquisitions, total | (10,727) | (9,541) | (5,148)
Intangible assets acquisitions include: |  |  |
3G/4G Licenses acquisitions (Note 9) |  |  | (2,256)
Total |  |  | (2,256)
Other intangible assets acquisitions (Note 9) | (1,238) | (1,754) | (1,448)
Plus: Payments of trade payables originated in prior years acquisitions | (93) | (201) | (116)
SAC acquisitions offset with trade receivables | (313) | (305) | (212)
Less: Acquisition of intangible assets through incurrence of trade payables | 673 | 462 | 466
Total | $ (971) | $ (1,798) | $ (1,310)

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- Definition The cash outflow for the purchases of property, plant and equipment, classified as investing activities. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 16 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_16_a&doctype=Standard -URIDate 2017-03-09 + Details
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